Used as a neutron absorber in nuclear reactors due to its high neutron capture cross-section. Employed in the production of samarium-cobalt magnets, which are strong permanent magnets used in motors, sensors, and aerospace applications. Applied in cancer treatment, particularly in the form of samarium-153, which targets bone cancer and relieves pain from metastatic tumors. Utilized in research and industrial catalysts for organic synthesis. Also found in doping agent for lasers and optical materials.